Synthesis, Characterization, and Application of Amorphous Silica-Aluminas Support for Fischer-Tropsch Wax Hydrocracking Catalysts.

ABSTRACT: High-performance amorphous silica-aluminas (ASAs) were prepared prior to the formation of the 10-membered ring (10-MR) ZSM-5 zeolite by regulating the hydrothermal processing time. Their structures, morphologies, acidity properties, and Si-Al coordination were well studied. Particularly, a facile FTIR method of in-situ adsorbing bulky 2,6-dimethlypyridine followed by pyridine adsorption was innovatively utilized to quantify the Brønsted acid sites in micropores. All the ASAs samples were transformed into catalysts by loading with 0.5 wt % Pt. The structure-activity relationship, especially from the strength, density, and location of Brønsted acid sites, was investigated by Fischer-Tropsch synthesis (FTS) wax hydrocracking. The evaluation results showed that the medium strong Brønsted acid

SUBMITTER: Li T 

PROVIDER: S-EPMC11360031 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature